Q2 of 34 Page 180

In the equation take x = –2 and and compute y.


When x = -2 : y =


So, y = + (-1) y = -1- = -


When x = - : y = so, y =


So, y = + 2 =


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4

Natural numbers, their netiaves and zero are together called intergers. How many pairs of integers are there, satisfying the equation, x2 + y2 = 25 ?

 1

In the equation take z as the numbers and compute y.

 3

In the equation take x as the numbers given below and calculate the number z.

x = 10, y = –5

 3

In the equation take x as the numbers given below and calculate the number z.

x = –10, y = 5